An electron is in a region outside the nucleus. How will you describe an electron? A. Has a positive charge B. Is larger than a proton and has no charge C. Is smaller than a proton and has no charge D. Has less mass than a proton and has a negative charge .

An electron is in a region outside the nucleus. Therefore, an electron A. has less than mass than a proton and has a negative charge.

Explanation:

Since the relative mass of an electron is 1/1840 and a proton is 1. Therefore, the electron relative mass is less than a proton. Then, an electron has negative charge (-1) while a proton has positive charge (1).

What is an Atom?

The concept of the atom was proposed by Greek Philosopher Democritus that matter is composed of tiny fundamental particles and it is an atom. This term means indivisible or uncuttable.

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